Leaf Sport Wireless Bluetooth earphones comes with Bluetooth v4.1 and balanced left and right stereo channels which ensures a perfect stereo sound quality. It has a built-in rechargeable powerful lithium battery which provides upto 6 hours of music playback time and 6 Hours of talktime with a standby time of 200 hours. It also comes with a microphone to play/pause music, accept/reject calls and activate smart assistant like Siri or Google now. Its sports earhook makes the earphones sport friendly so just sit back and #FEELTHEMUSIC